Jack Frost is the Public Domain Anthropomorphic Personification of cold in the air and the frost designs on windows. Unlike many, he is not necessarily associated with a holiday; although naturally he tends to be most active in Winter simply because that's where the action is. He can be depicted as playful and mischievous as a snow day; or as cruel as the killing ice. Jack Frost may refer to:
- The Rankin Bass special, Jack Frost
- The horror film Jack Frost (1997).
- The family film Jack Frost (1998).
- 1966 Russian film based on a folk tale Morozko, which has also gone by the name Jack Frost.
- The Manhwa Jack Frost
- The Atlus mascot, hee ho!
- The villain of the 3rd The Santa Clause movie.
- The villain of the Rainbow Magic series.
- The protagonist from the Rise of the Guardians.